Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4299913 | Photographic reversal process without second exposure | — | 1981-11-10 |
| 4282313 | Photographic material with stabilizers | Heinrich Odenwalder, Friedhelm Sommer | 1981-08-04 |
| 4276372 | Photographic material with interimage effect | Reinhart Matejec, Franz Moll | 1981-06-30 |
| 4184875 | Photographic reversal process | Heinrich Odenwalder | 1980-01-22 |